Digestion and Absorption Test - 2

Enterochromaffin-Like (ECL) cells synthesize and secrete histamine. These cells are stimulated by the hormones gastrin and pituitary adenylate cyclase-activating peptide. Histamine and gastrin together stimulates secretion of hydrochloric acid from parietal cells.

Esophagus ends at the cardia of the stomach, at the level of the eleventh thoracic vertebra.

Gastric folds provide the stomach with increased surface area for nutrient absorption.

Secretory cells of pancreas have many small granules of zymogens. A zymogen is an inactive precursor of an enzyme.

Liver synthesizes bile but it is stored in gall bladder.

Foliate papillae are not developed in human tongue, are leaf-like and are situated at the sides of the base of the tongue.

 The laryngopharynx is the most inferior portion of the pharynx that leads into the oesophagus behind and into the larynx in front.

Palatine tonsils are attached to the palate and are often infected that leads to sore throat. Such enlarged tonsils may become a focus of infection and their surgical removal becomes necessity.

Visceral peritoneum is made up of squamous epithelium and areolar connective tissue and is continuous with the mesentery.

Submandibular glands are medium sized, are located at the angles of the lower jaw and their ducts open into the oral cavity near the lower central incisors.